release/src-rt-6.x.4708/tools/misc/xz/src/liblzma/lzma/lzma_decoder.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //
   3 /// \file       lzma_decoder.h
   4 /// \brief      LZMA decoder API
   5 ///
   6 //  Authors:    Igor Pavlov
   7 //              Lasse Collin
   8 //
   9 //  This file has been put into the public domain.
  10 //  You can do whatever you want with this file.
  11 //
  12 ///////////////////////////////////////////////////////////////////////////////
  13
  14 #ifndef LZMA_LZMA_DECODER_H
  15 #define LZMA_LZMA_DECODER_H
  16
  17 #include "common.h"
  18
  19
  20 /// Allocates and initializes LZMA decoder
  21 extern lzma_ret lzma_lzma_decoder_init(lzma_next_coder *next,
  22                 lzma_allocator *allocator, const lzma_filter_info *filters);
  23
  24 extern uint64_t lzma_lzma_decoder_memusage(const void *options);
  25
  26 extern lzma_ret lzma_lzma_props_decode(
  27                 void **options, lzma_allocator *allocator,
  28                 const uint8_t *props, size_t props_size);
  29
  30
  31 /// \brief      Decodes the LZMA Properties byte (lc/lp/pb)
  32 ///
  33 /// \return     true if error occurred, false on success
  34 ///
  35 extern bool lzma_lzma_lclppb_decode(
  36                 lzma_options_lzma *options, uint8_t byte);
  37
  38
  39 #ifdef LZMA_LZ_DECODER_H
  40 /// Allocate and setup function pointers only. This is used by LZMA1 and
  41 /// LZMA2 decoders.
  42 extern lzma_ret lzma_lzma_decoder_create(
  43                 lzma_lz_decoder *lz, lzma_allocator *allocator,
  44                 const void *opt, lzma_lz_options *lz_options);
  45
  46 /// Gets memory usage without validating lc/lp/pb. This is used by LZMA2
  47 /// decoder, because raw LZMA2 decoding doesn't need lc/lp/pb.
  48 extern uint64_t lzma_lzma_decoder_memusage_nocheck(const void *options);
  49
  50 #endif
  51
  52 #endif